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In Copenhagen,an 8-year dream was realized when the first paid skiers took their runs down a one-third-mile course （路线）.They skied on what is possibly the greenest power factory in the world.The factory is so clean and safe that designers were able to turn its buildings into a new center for social life.
The waste-to-power factory itself opened in 2017 under the name Amager Bakke.Bjarke Ingels is the architect whose company came up with the idea eight years ago of designing a power plant building that would join mountain sports into its very nature.
"It is the cleanest waste-to-energy power plant in the world.It is not only better for the environment,it is also more enjoyable for the lives of its citizens." Ingels says 97% of city people get their heating as a by-product of energy production.It comes from a system where the electricity,heating,and waste disposal（处理） are mixed into a single process.He dreams that it is also becoming an example that others can look to and say,"If Copenhagen can do it why can't we？"
There are no hills in this island city,but now people can ski locally,while enjoying the best views ever seen of the harbor.Another thing missing here is snow cover throughout the winter,so designers set up a kind of special "plastic grass" that provides the perfect friction （摩擦力） for downhill winter sports.
In a country where 600，000 skiers always had to travel to practice sking,to be able to finally ski in their backyard-and,all year round - is,as one skier said,"AMAZING."
The company hopes to see 300，000 visitors enjoying the experience of Copen hill each year,with the ski slope costing ﹩22 an hour or just ﹩366 for a full season pass.Meanwhile,the city is one step closer to its final goal of becoming the world's first carbon-neutral city by 2025.We think it might be all "down hill" from here.



How does the power factory produce electricity？ ______

A. By using oil.
B. By using coal.
C. By using wind.
D. By using waste.

What's Ingels' dream according to the passage？ ______

A. To make more tall buildings in different big cities.
B. To help more skiers to ski in high mountains.
C. There will be more green power factories in the world.
D. More and more people will ski in the power factory.

Where do the skiers ski in the power factory？ ______

A. On man-made snow.
B. On man-made ice.
C. On plastic grass.
D. On real sand.

The underlined part "it might be all 'downhill' from here" means that ______ .

A. they will soon reach their final goal
B. they will soon draw many visitors
C. they will produce more electricity
D. they have difficulties reaching the goal

Looking into Jane's room,I saw her ____________the piano alone.（　　）

Two thirds of the task my boss assigned to me____________.（　　）

The story,____________by a middle school student,is popular in schools.（　　）

Some computer games encourage____________ behavior in young children,which must be banned.（　　）

Waking up in the morning,Tom was surprised to find himself____________ with a large carpet.（　　）

Women Who Changed Science Forever This International Women's Day,we're celebrating three women who changed the face of science forever.
Ellen Ochoa
Ellen Ochoa is an American engineer and retired astronaut.She was the first Latina woman to fly in space as part of the crew of the shuttle Discovery in 1993.Ochoa attended San Diego State University and then continued her education at Stanford.Ochoa regards her mother,whose passion for learning kept her in part-time college courses all through Ochoa's childhood,as an important influence on her career.
At the end of her flying career,Ochoa had traveled nearly 1，000 hours in space.From 2012 to 2018，Ochoa served as the director of Johnson Space Center in Houston,Texas,only the second woman to head up NASA's human spaceflight headquarters.
Mamie Phipps Clark
Mamie Phipps Clark was an American social psychologist（心理学家），who specialized in child development in black children.Born in Arkansas,Clark drew on her early experiences as a black child in the segregated（种族隔离的）American South to help children growing up with the same iniquities.
Clark stated at Howard University in 1934，and went on to complete a PhD in psychology.She and Kenneth,now her husband,were the first two black people to earn PhDs at Columbia.With their funding,she started the famous Doll Test,which showed the negative effects of school segregation on black children.
Anandibai Gopalrao Joshee
Anandibai Jpshee was to become India's first woman physician with a medical degree.When she was young,her father strayed（偏离）from the traditional Hindu belief that women should not receive education and encouraged her to go to school.When she was fifteen,she was determined to study medicine,a choice likely influenced by the loss of an infant son and surviving a serious illness herself.At the Woman's Medical College,Joshee studied devotedly,hoping to return to India to serve other Indian women.
She died in February 1887 at the young age of twenty-one.Despite her short life,Joshee's accomplishments were remarkable for an Indian woman,and her achievements were enough to open the door for other Indian women to quickly follow.



In Ochoa's idea,what influences her most in her career？ ______

A. Her part-time job in a college.
B. Her first flight in space in 1993.
C. Her mother's desire for knowledge.
D. Her experience in NASA headquarters.

What is Phipps Clark famous for？ ______

A. Having a PhD in psychology.
B. Fighting against racial discrimination.
C. Starting the test on the growth of children.
D. Devoting herself to the founding of equalities.

What do the three great women have in common？ ______

A. They specialized in similar research fields.
B. They all experienced inequality in education.
C. They were pioneers changing our belief in women.
D. They were scientists influencing our way of learning.

Which of the following word best describes the three women？ ______

A. Dedicated.
B. Modest.
C. Creative.
D. Caring.

ECycling refers to the recycling of electronic items,which are becoming a common problem in American home and throughout the world.The EPA，or Environmental Protection Agency,has actually started a program to help and motivate the recycling of electronics.
To get the program to the regional and neighborhood levels,the EPA directed "Plug-In to eCycling Partners." These partnerships support electronic reusing programs in individual communities.They provide local governments,retailers and manufacturers with opportunities to reuse and recycle their items.Those who make and offer electronic devices then promote programs and opportunities for consumers to reuse their second-hand electronic products.One of the EPA's goals is to enlighten customers about why the recycling of electronics is so important.They likewise wish to make eCycling chances easily accessible to specific consumers and their family electronics.According to the EPA，the eCycling program has actually been quite successful.In 2008，the EPA collected 66.5 million pounds of electronic devices through their Plug-In Partners.
Local governments have actually likewise got on board and passed laws intended to handle used electronic devices.Huge corporations have actually introduced eCycling programs at their local retail stores.One seller offers customers small,medium and big boxes for sale,which the customers then load with used electronics and go back to the store.Typically,customers bring their recyclable electronics to a location.When the electronic items are gathered by the EPA（typically this is done by the Partners），they are reused or recycled.
Reused items are repaired and refurbished,and passed on to others as a contribution.You can repair or recondition your very own electronic devices too,extending the life of the items and conserving the energy of making new materials.Reusing electronic devices includes making use of the products and pats of the items.These materials and parts are then made use of to produce another item.This is more efficient than making items from new materials.
Some items that are commonly eCycled consist of televisions,computer monitors,printers,notebook computer,keyboards and cable televisions.Less usual items include copying machines,CDplayers,voice mail machines,computer hard drives,mobile telephones,remote controls,radios,batteries,telephones,facsimile machines and computer games.Occasionally,electronic items such as microwaves,fans,vacuums,smoke alarms,and toasters are eCycled.
As the eCycling program continues,you or your organization may want to get involved.Check the EPA's internet site（www.epa.gov）for regional eCycling programs,or for details on how your company can participate.Their website has links to organizations that are taking part in the eCycling program.



The EPA brought about "Plug-In to eCycling Partners" to ______ .

A. make and offer electronic devices to consumers
B. make customers understand the importance of eCycling
C. make the program accessible to local regions and communities
D. make it possible for consumers to reuse their used e-products

The Plug-In Partners are mainly engaged in ______ .

A. repairing electronic device
B. gathering recyclable electronics
C. reusing second-hand e-products
D. offering customers different boxes for sale

What can we infer from the passage？ ______

A. People can sell their reused items on the Internet.
B. Individuals can't take part in eCycling programs.
C. Devices of computers are well eCycled.
D. Not every electronic item can be eCycled.

What is the main purpose of this passage？ ______

A. To introduce a new way to save costs.
B. To teach customers how to recycle electronics.
C. To attract people to join in the eCycling programs.
D. To call on local governments to support Plug-In Partners.

At any moment,about half the world's population is wearing denim（牛仔布）clothes.But few realize tiny bits of denim have been adding up to a surprising amount of pollution in water,as a new study shows.
Sam Athey,one of the study's authors,says,"Even though denim is made of a natural material—cotton,it contains chemicals." Cotton fibers were treated with many types of chemicals,she notes.Some improve its durability and feel.Others give denim its distinctive blue color.
Athey and her team washed jeans and found that about 50，000 microfibers came off from each pair per wash.Not all of those fibers make their way into the environment.Wastewater treatment plants catch about 83 to 99 percent of them.Catching 99 percent may sound pretty good.But one percent of 50，000 is still 500 fibers per wash.And since every pair of jeans is washed again and again,it still adds up to lots of microfibers entering the water environment.
Denim microfibers showed up in sediment（沉淀物）from the Great Lakes.More of these fibers polluted a series of shallow lakes in southern Ontario.They even turned up in sediment from the Arctic Ocean in northern Canada.The team found denim accounted for 12 to 23 percent of microfibers in the sediment.There were other microfibers too.But the team focused on denim because so many people wear jeans.
"Everyone wears jeans so they could be our largest input of microfibers into our streams and soils," Athey says. "An easy way to limit that is by washing our jeans less often." Athey grew up thinking she should wash her jeans after wearing them every couple of times,but most jean companies recommend washing them no more than once a month. "The solution is not that you shouldn't wear jeans," she says. "We need to buy fewer denim clothes and only wash them when they truly need it."



Which of the following is TRUE according to the passage？ ______

A. Chemicals are contained in natural cotton.
B. Chemicals can make denim colorful.
C. Chemicals prevent fibers from falling.
D. Chemicals can make the life of denim longer.

What does the underlined word "them" in Paragraph 3 refer to？ ______

A. Denim.
B. Sediment.
C. Microfibers.
D. Chemicals.

What does the author mainly want to tell us through Athey's words ？ ______

A. To avoid wearing jeans.
B. To reduce denim consumption.
C. To wash jeans more often.
D. To limit input in denim production.

In which section of a magazine might the text be found？ ______

A. Science.
B. Entertainment.
C. Tourism.
D. Geography.

Turning on the air conditioning to its highest setting can bring sweet relief.But your resulting energy bill？Not so much.What if your home could stay cool all on its own—no electricity required？
That's the prediction of Yi Zheng's new invention.The associate professor of mechanical and industrial engineering at Northeastern University in Boston has created a sustainable material named "cooling paper" that can be used to make buildings or other objects able to keep cool without relying on conventional（常规的） cooling systems.Not only does the light-colored material reflect hot solar rays away from the building,it also absorbs heat out of the inside,too—heat that is emitted from electronics,cooking,and human bodies.
Zheng got the idea when he looked at a bucket full of used printing paper,recalling "How could we simply transform that waste material into some functional energy material？" With the help of a high-speed blender（搅拌机） from his home kitchen,Zheng made a mixture out of paper waste,mixed with the material that makes up Teflon（聚四氟乙烯）.Then he formed it into water-proof "cooling paper" that could coat homes.The cooling paper can reduce a room's temperature by as much as 10 degrees Fahrenheit （6℃）.
The cooling paper isn't just co-friendly in its ability to reduce your energy footprint,but also recyclable.The material can be used,exposed to solar radiation,weather,and varying temperatures,then reduced to a mixture again and reformed without losing a bit of its cooling properties.Zheng says. "We thought there would be maybe 10 percent,20 percent of loss,but no."
Zheng doesn't just aim to reduce your energy bills through his research.He also hopes that his work will help fight against climate change. "The starting point is to reduce the use of carbon-based materials and also to reduce global warming," Zheng says.



What is paragraph 2 mainly about？ ______

A. The prediction of the new invention.
B. The function of the new material.
C. The difference of the new invention.
D. The creation of the cooling paper.

Which of the following best describes Zheng's idea？ ______

A. Boring.
B. Demanding.
C. Creative.
D. Unrealistic.

What's the biggest advantage about cooling paper？ ______

A. It could keep the room cool without electricity.
B. It is based on traditional system.
C. It can barely take in the heat on its own.
D. It can not resist water.

From the last two paragraphs,we know the cooling paper ______ .

A. can predict the weather
B. greatly affects climate change
C. has replaced conventional material
D. is promising in environmental protection